@article{GDZPPN002065762,
title = {A non-immersion theorem for hyperbolic manifolds.},
journal = {Commentarii mathematici Helvetici},
volume = {60},
year = {1985},
pages = {280-283},
zbl = {0566.53045},
url = {http://dml.mathdoc.fr/item/GDZPPN002065762}
}
Xavier, Frederico. A non-immersion theorem for hyperbolic manifolds.. Commentarii mathematici Helvetici, Tome 60 (1985) pp. 280-283. http://gdmltest.u-ga.fr/item/GDZPPN002065762/